Moon Mountain Adventures - Organises small low budget expeditions into the Nepal Himalaya, focusing on cultural exchange, off-route exploration and safe ascent to high altitudes. Responsible Adventures - Himalayan Trekking Specialists. Offer services in the Himalayan regions for all ages and any group size, ranging from family trekking holidays to school educational trips. Roopkund - Information on the Roopkund trek in India. A1 Excursion - Nepal based company that offers adventure travel to Nepal, Bhutan, and Tibet. Botanical Treks - Offer adventure holiday in Nepal, Tibet & Bhutan, with special interest & botanical tours in the Himalayan national parks with naturalists guides. Himalayan High Treks - Since 1988, Himalayan High Treks provides treks in India, Bhutan, Nepal, Tibet and Southeast Asia. Tibet Tours - Local travel agency offering trekking tours in Tibet and China.